Ashford Perimeter Center Garage

Atlanta, GA

Market: Parking

Client

Glenborough Realty Trust Inc.

Completion

2000

Awards

2001 Award of Excellence in Strengthening of Structures, ICRI

The Ashford Perimeter Center garage is a four-level, 700-car concrete parking structure with post-tensioned, flat slabs supported on concrete columns. During the garage construction, it was discovered that the post-tensioning system in the east-west direction of the slab was inadequately designed. The project team implemented a repair that consisted of adding heavily reinforced, 3 in. thick by 3 ft wide gunite beams to the underside of the slab, but some of the gunite beams delaminated. In addition, the garage exhibited leakage, slab cracking, and large deflections of cantilevered bays.